Padlock



(No Model.)

G. A. LARVSON.

PADLOGK. 110.473,192. Patented Apr. 19, 1892.

rnffrns fUNrTn CHARLES A. LARSON, OF KEVANEE, ILLINOIS.

f PADLOCK.

SPECIFICATION forming part of Letters Patent N0.4'73,192, dated April 19, 1892.

Application filed November 27, 1891.

T0 a/ZZ whom it may concern:

Be it known that I, CHARLES A. LARsoN, a citizen of the United States, residing at Kewan'ee, in the county of Henry and State of Illinois, have invented a new and useful Padlock, of which the following is a specification.

This invention relates to padlocks; and it has for its object to provide a padlock very simple in construction and one which, while providing for an easy and ready attachment to the obj ect to belocked, is also so constructed whereby the same may be very quickly looked and unlocked with but a slight turn of the key used therefor.

With these and many other objects in view, which will readily appear as the nature of the invention is fully understood, the same consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure l is a perspective view of a padlock constructed in accordance with my invention. Fig. 2 is a vertical sectional view of the same directly in rear of the front cap-plate, showing the padlock locked. Fig. 3 is a similar view illustrating the same as unlocked. Fig. 4 is a transverse sectional view of the padlock directly through the key-hole and locking-arm. Fig. 5 is a detail in perspective of the key.

Referring to the accompanying drawings, A represents the casing of my improved padlock, 'constructed in the usual shape, adapted to receive the various parts of the lock, and said casing, as illustrated, is provided with a half-bow shackle a, integrally cast with the casing and curving thereover directly over the center of the top of the same, and is provided in its outer end .with the notch d', which is adapted to receive the opposing end of the opposite section of the shackle, to be described. Pivoted upon the bolt B in the opposite upper corner of said casing is the loose half -bow shackle C, which curves from its pivot over the top of the casi ng and completes the shackle, and is provided at its outer end with the tongue c, which when the padlock is locked takes within the groove or notch o. of the stationary half -bow shackle, and thus provides a shackle which when locked conforms in shape to the ordinary shackle in the ordinary padlocks, but which provides a joint directly over Serial No. 413,304. (No model.)

the center and top of the casing, which allows for a-convenient and ready application of the lock 'to the hasp or other object to which the same is secured. The loose shackle C is further provided With an inwardly-extending arm D, projecting within the casing from the pivot B and conforming to the shell of said casing, so that when the shackle is in its locked posi- -tion the said arm lits snugly against the side of .said casing, and said arm is further provided at its extreme lower end, at'the bottom of the casing to which it projects, with a lock ing-shoulder d, that is engaged by the locking device. A spring E is located in rear of said arm D, in order to throw the same away from the casing and open the shackle when said arm is relieved from its lock. A capplate F covers the top of said casing and is provided with an ordinarily-shaped key-hole e, directly behind which upon the inner face of said cap-plate is formed a recess e. A stationary pivot-plate F is secured upon the inner face of said cap-plate, and, projecting over said recess and said plate, is provided with an end perforation f, in which is loosely mounted the squared pin Gr, secured in said perforation, so that the same may freely revolve therein and extend into the key-hole upon one side thereof and inwardly into the lockcasing upon the other. rlhe squared pin carries upon its inwardly-extended portion the locking-arm H, provided at its outer end with a locking notch or shoulder h, oppositely disposed with relation to the locking-shoulder d and adapted to be thrown into engagement therewith to throw the shackle-arm D against the casing, and thus lock the bow thereof. The locking-arm H is further provided with a projecting end h', taking into and working in the recess e', and said projecting end is provided with an operating-notch h2, designed to receive the inwardly-projecting wing I of IOO means whereby said arm is readily operated by the squared pin upon which the same is mounted, and said wing of the key engaging the projecting end of the same and working within the recess e', which provides for a limit of the motion of the same. A spring K may be connected with said locking-arm and the casing to normally hold the same locked, if so desired, said spring being shown in dotted lines, as its use is not materially essential.

The operation of the lock is apparent from the foregoing. Having turned the lockingarln up into the casing, as illustrated, the spring behind the shackle-arm forces the bow thereof away from the opposing stationary bow, which allows the lock to be taken off or placed upon articles to be locked or unlocked. A reverse movement of the key throws the locking-ar1n into engagement with the shacklearm.

Having thus described my invention,- what I claim, and desire to secure by Letters Patent, is-

1. In a padlock, the combination, with the casing, of a stationary half-bow shackle extending above the center of said casing and provided with a notch in its outer end, an opposing half-bow shackle pivoted to said casin g and provided at its outer end with a projecting tongue adapted to engage said notch and with an inwardly-extending spring-actuated operating-arm workin g within said casing and provided at its lower end with alocking shoulder, an oscillating key-pin journaled in the casing and projecting slightly without the same, a locking-arm carried by said pin and working within said casing, and a key engaging the projecting end of said pin to throw said arm upon and away from said lockingshoulder, substantially as set forth.

2. In a padlock, the combination, with the casing, of a stationary half-bow shackle, an opposinghalt-bow shackle pivoted to said casing and adapted to meet and work away from said stationary shackle-bow, the said pivoted half-bowshackle being provided with a springactuated arm working Within said casing and provided at its lower end with a locking-shoulder, a cap-plate, a pivot arm or plate secured to said cap-plate, an oscillating pin journaled or swiveled in said pivot-plate and projecting into the key-hole and within the casing, a locking-arm carried upon the inner end of said pin, and a key engaging the outer end of said pin and arm and adapted to throw the same upon and away from said locking-shoulder, substantially as set forth.

3. In a padlock, the combination, with the casing, of a stationary half-bow shackle, an opposing half-bow shackle pivoted to said casing and provided with a spring-actuated arm working within the same and provided at its lower end with a locking-shoulder, a capplate having an inner recess, a pivot arm or plate secured to said cap-plate and projectingr over said recess, an oscillating square pin journaled or swiveled in said pivot-plate and projecting into the key-hole and within the casing, a locking-arm carried upon the inner end of said pin and provided at one end with a locking notch or shoulder and at the other with an operating-notch opening into said cap-plate recess, and a key having a squared recess engaging the outer end of said pin and a wing projecting below the end of the key and adapted to engage the operating-notch of said locking-arm, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aixed my signature in the presence ot' two witnesses.

CHARLES A. LARSON.

lllitiiesses:

Emma KENYON, XVM. J. TREVORROW. 

